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The Influence of Iron on the Physical and Mechanical Properties of β-Nial

Published online by Cambridge University Press:  22 February 2011

Y. J. Lim ,
K. T. Hong ,
V. Levit  and
M. J. Kaufmann
Y. J. Lim
Affiliation:
Dept. of Materials Science & Engineering, University of Florida, Gainesville, FL 32611
K. T. Hong
Affiliation:
Dept. of Materials Science & Engineering, University of Florida, Gainesville, FL 32611
V. Levit
Affiliation:
Dept. of Materials Science & Engineering, University of Florida, Gainesville, FL 32611
M. J. Kaufmann
Affiliation:
Dept. of Materials Science & Engineering, University of Florida, Gainesville, FL 32611
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Abstract

The influence of iron on the the microstructure and properties of B2 NiAl has been investigated using electrical resistivity, magnetic susceptibility, microhardness and transmission electron microscopy. The resistivity data suggest that quenched-in vacancies (1) enhance iron rearrangement at low temperatures (600–800 K) and (2) annihilate above 800 K. These effects depend strongly on Ni/Al ratio and are greatest for Ni/Al=1. It is also shown that these data correlate directly with the results obtained using the other experimental techniques.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 273
Copyright
Copyright © Materials Research Society 1995

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